Russian President Vladimir Putin looks on during a meeting with Serbian President Tomislav Nikolic in Moscow’s Kremlin October 30, 2013. REUTERS/Michael Klimentyev/RIA Novosti/Kremlin (RUSSIA – Tags: POLITICS) ATTENTION EDITORS – THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS